A friend's concern led police to arrest a man accused of holding a woman against her will at knifepoint.

The man was initially booked in for rape, but Prosecutor Jim Oliver said a follow-up investigation revealed that they did not have enough evidence to prove the charge.

On Aug. 8, Nashville Officer Brian Shrader received a call from an off-duty police officer who said a family member was worried about the wellbeing of a friend who had an abusive boyfriend, according to a probable cause affidavit.

The boyfriend, 21-year-old Isaias Bustamante, lived in a basement apartment at 91 W. Gould St. in Nashville.

Police knocked on the door several times, but no one answered. The friend, who lives nearby, said no one had left the apartment in the hour since she had left.

Police kept knocking and Bustamante eventually came to the door. Officers separated him and his girlfriend.

The girlfriend told police that the day before, Bustamante accused her of cheating. He yelled and then struck her in the head multiple times. He also held a knife to her side.

The attack bloodied her nose and left a “goose egg” on the back of her head, according to the affidavit.

The friend who had called for police said that initially, she refused to leave when Bustamante returned home and told her to get out. She did not want to leave her friend because of Bustamante’s history of hurting his girlfriend, the affidavit states.

During an interview at the Brown County jail, Bustamante initially denied attacking the woman. He later changed his story by saying he smacked her with an open hand because she had not been keeping the home clean, and she had also been speaking with another man.